import threading

local_school = threading.local()

def process_student():
    std = local_school.student
    print('Hello, %s (in %s)' % (std, threading.current_thread().name))


def process_thread(name):
    local_school.student = name
    process_student()

t1 = threading.Thread(target=process_thread, args=("ywc",), name="Thread-A")
t2 = threading.Thread(target=process_thread, args=("hln",), name="Thread-B")
t1.start()
t2.start()
